# Classroom Air Purifiers for Reducing School Absence

> **NCT07119333** · NA · ENROLLING_BY_INVITATION · sponsor: **Norwegian Institute of Public Health** · enrollment: 72 (estimated)

## Conditions studied

- Asenteeism

## Interventions

- **DEVICE:** Air purifiers
- **DEVICE:** Sham air purifiers

## Key facts

- **NCT ID:** NCT07119333
- **Lead sponsor:** Norwegian Institute of Public Health
- **Sponsor class:** OTHER_GOV
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ENROLLING_BY_INVITATION
- **Start date:** 2026-01
- **Primary completion:** 2027-03
- **Final completion:** 2027-03
- **Target enrollment:** 72 (ESTIMATED)
- **Last updated:** 2025-11-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07119333

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07119333, "Classroom Air Purifiers for Reducing School Absence". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT07119333. Licensed CC0.

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